Manipulator for rolling-mills.



P. G. BIGGERT, JR.

MANIPULATOR FOR ROLLING'MILLS. APPLICATION FILED JUNE 28. 1907.

WITNESSES PATENTBD JULY 14, 1908.

. 3 SHEETSSHEET 1.

INVENTOR NU r No. 893,429. PATENTED JULY 14, 1908.

. F O BIGGERT, JR.

MANIPULATOR FOR ROLLING MILLS.,.

.APLLIOATION FILED JUNE 28. 1907.

3 SHEETS-SHEET 2.

' PATENTED JULY 14, 1908. F. c. BIGGERT, JR.

MANIPULATOR FOR ROLLING MILLS. APPLIOATION FILED JUNE 28. 1907.

3SHEETSSHEET 3.

iNVEZNTOR j CQL qg w.

n'srran STA-Eh.

reinser @ltiFiQ-Er FLORENCE o. BIGGERE JR, o ALL enENv, PENNSYLVANIAASSIGNOR TO UNITED ENGINEERING & FOUNDRY COMPANY, or PITTSBURG, PENNSYLVANIA, A coRPo RATION OF PENNSYLVANIA.

araurrune'roia son ROLLING-mus.

To all whom it may concern:

Be it known that I, FLORENCE G. Breanne,

Jr., ofAllegheny, Allegheny county, Pennsylvan a, have invente a new anduseful Manipulator for Rolling-Mills, of which the following is a full, clear, and exact des'crip. tlon, reference being had to the accompanyingdrawings, forming part'of this specification, in wh1ch- Figure 1 is a plan view partly broken away of a manipulating mechanism embod ing my invention Fig.2 is a side view of t e same with one of the .table rollers in dotted lines;

Fig. 3 is an enlarged view, partly diagram- 4 matic of the working partsof the manlpulater; :Eig. 4 1s a. seotionon theline IVIV ofF-igrl; and Figs. 5 and 6 are detail views of 'theltilting'zlifter arm.

invention has relationtomariipulators for 'rollin'gfmills, andfis designed toprovide: a;

manipulatorlfor edging up bille'ts or blooms onthe'rolltable, and. also moving them intov line-with the proper roll pass in transferring.

' A further object is to provide a manipu later of this character which shall be simple in its construction and operation, in which the entire work of the manipulator can be accomplished by a single motor, and in which means are provided for holding the billet or bloom in'its edged osition.

invention wi l be best understood by reference to the accompanying drawings which will now be described, premising,.how,-

ever, that various changes -may be made in the details of the constructions and arrange-.1 ment, by those skilled in the art, without departing "from the fspirit and scope of my in: vention. i

The numeral 2 designates a suitable cal?" riage which is mounted to reciprocate transversely of the roll table between two of the rolls 3. Q

4 designates a suitable bed frame having guides 5 in which the base of the carriage 2 is mountedto move.

6 designates a rock shaft whichjs mountedtransversely in hearings on the carriage 2, and to jrhich is keyed or otherwise rigidly secured. tiltable lifter arm/i, (shown in detaii'in' 5 and 6). Projecting upwardly from the sh with the a 3" are the two parallel arms which are connected by the two parsl- Specification of Letters Patent. I Application fi1ed.June 28, 1907. Serial No. 381,228.

' tin the and preferably integral Patented July 14, 1908.

Zlel links 9 with a cross head or slidev 10 which 11s mounted for rec procation on a suitable ibaseill, and to which is connected a piston rod 12 of a hydraulic or power cylinder 13 of the usualdouble acting ty e. Attached to the carriage2'is a friction 8.1 14 whose end portion extends through a suitable friction clamp 15, the action of which can be adjusted.

by means ofsprings'lo and nuts 16.

Pivotally mounted in and between the two arms 8 is an arm 17: inwhich is journaled a roller 18 which lies above the lifter arm- 7.

The arm 17 has'an extension 19below its pivot provided with a counterweight 20 and carrying a roller 21 which is adapted to travel in engagement with a cam surface 22 on the ,carriage 2, beingheld against such surface by the counterweight 20.. The cam surface 22 @has, at its lower end, a depression 22*, the

'purpose ofwhich will presently appear.

' The lifter arm 7 is normally below the level !-of therolls 3, asshown in Figs. 2 and 4, and tear; be brozught underneath a billet or bloom,

;movir ]%ithe carriage 2 by means of the motor -13. enit is desired toedge up the billet or bloom, and transfer it in line WIth iLHOthBI.

roll pass, power is admittcdto the cylinder 13, in the direction to actuate the arms 8 to elevate the lifter 7 into contact with the billet or bloom, and turn it upwardly and over into edge position. During this movement of the lifter arm, the roller 21 travels downwardly along the cam surface 22, the roller 18 bearing lightly against the billet or bloom and steadying its movement to prevent it from falling over beyond its edge position. When the billet or b oom hasbeen raised to itaedge position,

Up to this time, the friction exerted on the bar 14' has been sufiicient to prevent movement of the carriage 2. As soon, however, as the roller engages the'cam depression 22 further move-- ment of the tilting arm? is prevented, and the further operation of the niotor'cause's said carriage to move bodily, thereby trans the roller'2l, or the end of, the arm incwhich the roller is journaled en; 1 gageswith Itheiilopression 22.

manner indicated in these figures, by 1 ferrin' the bloom to the desired position on formed by i actuation of the motor W1 The advantages of my invention result from the simplicity of the construction,'and from the fact that the entire work of edging up and transferring the billet can be pera single motor. The parts are few in number and of such character as to efficiently withstand the work to which they are subjected.

ll hat I claim is I 1. A manipulator having a movable support, a lifter mounted on the support, an actuating motor, connections between the motor and the lifter, and connections between the lifter and its su ort' whereby the 'l ffirst actuate the lifter to turn the bloom or blank, and will then impart a transfer movement to the support; substantially as described. 2. A manipulator having a transversely movable supporting element, a "lifting element having a connection with the supportmg element whereby movement lmparted to one of the elements will move both elements after an initial independent movement of that element, a motor having an actuating connectionujth the last-named element, and means for holding the other element against moven'ient' du'ring a portion of the time of operation of the motor, substantially as de- 3 0 scribed.

3. A manilpulator having a movable support, a tiltab e lifter mounted on the support, an actuating motor, connections between the motor and the lifter, connecting means be- '35 tween the litter and the support, whereby.

the actuation of the motor Wll first actuate the lifter to turn thd bloom or blank and will then impart a transfer movement to the su port, and a friction device acting upon t e 40 support to hold it against movement while the lifter is being actuated to turn the bloom or blank, substantially as described.

4. In a manipulator, a movable support, a lifter pivoted thereto, cooperating means on the lifter and support for causing the lifter to actuate the support after a certain initial movement of the lifter, a motor connected to the lifter, and a holding device arranged to engage said support to permit the support 6 to remain stationary during the initial movementof the lifter, substantially as described. 5. In a manipulator, the combination of a movable support, a work engaging member mounted on the movable support having a Work engaging portion adapted to beraised and lowered, an actuating motor connected to said member and adapted to impart movement to both the movable member and, by means of said member, to the support, and means between the said member and its support adapted to stop the movement of the ear member with relation to said support after a predetermined movement and thereby cause the movement to be imparted to the movable support.

6. Ina manipulator, a movable support, a lifter arm ivoted thereto, a holding arm pivoted to t e lifter, and a cam surface positioned on the support to be engaged b the holding arm and arranged to move the latter with reference to and upon movement'of the I connected to-the'support through the lifter arm, cam means positioned on the support to be engaged by the holding arm to move the latter with reference to and u on. movement of the lifter arm and also or locking the lifter arm to the table after an initial independent movement of the lifter arm, and means for resisting the movement of the carriage during the time of independent movement of the lifter arm; substantially as described. I

8. Ina manipulator, a movable support, a lifter ivoted to said support, a motor connected to the support through the lifter, cam means positioned on the su port in position to be engaged by the holding arm and arranged to move the latter with reference to and upon movement of the lifter arm, and a friction device actin upon said support to prevent movement t ereof during an initial movement of the lifter arm, substantially as described.

In testimony whereof, I have hereunto set my hand.

H. M. Conwm, GEO. H. PARMELEE. 

